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No. 623,433. Patented Apr. l8, I899. s. L. SHELLENBERGER.

ELECTRIC FAN.

(Application filed Apr. 21, 1898.) (No Model.) 2 Sheets-Shoet I.

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No. 623,433. 7 Patented Apr. l8, I899. S. L. SHELLENBERGER.

ELECTRIC FAN.

(Application filed Apr. 21, 1898.)

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(No Model.)

: ucnms vzrzns co, PHOTO-UM" wnsnma'rou u c UNTTE STATES PATENT Orrien.

SAMUEL I1. SI'IEIJLENBERGER, OF SOUTH MOALESTER, INDIAN TERRITORY.

ELECTRIC FAN.

SPECIFICATION forming part of Letters Patent No. 623,433, dated April 18, 1899.

Application filed April 21, 1898.

To rtZZ whom it may concern.-

Be it known that I, SAMUEL L. SHELLEN- BERGER, a citizen of the United States, residing at South McAlester, Choctaw Nation, Indian Territory, have invented a certain new and useful Improvementin Electric Fans, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

It is the object of my invention to provide a device by means of which an ordinary electric fan is revolved about a shaft through the medium of the air-current striking at an angle blades placed in the said current. By this means the air is distributed to all parts of a room instead of in one single direction, as has heretofore been the case. I accomplish this object by means of the mechanism shown in the accompanying drawings, in which Figure I shows a front elevation of an ordinary desk-fan equipped with my improvement. Fig. II shows a side view thereof. Fig. III shows a horizontal cross-section taken on the line III III, Fig. IV, illustrating how continuous contact is obtained while the fan is being revolved upon its shaft. Fig. IV is an enlarged detail View of a portion of the supporting-sleeve. Fig. V is a side elevation of two fans hung upon a shaft adapted to be suspended from a ceiling. Fig. VI is a vertical section showing how the contacts are established and the current conducted. Fig. VII is an enlarged view of a modified construction of the set-screw device for tiltingthe fan at various angles. Fig. VIII is a vertical section thereof on the line VIII VIII, Fig. VII.

1 is the stand on which an ordinary fan is supported when constructed for the purpose of being placed upon a table or desk. 2 is a sleeve secured to said stand, by which the device is supported.

3 is the motor of the fan, which is of the ordinary construction.

at is a central shaft adapted to revolve within the sleeve 2 and which supports the motor 3 through the intervention of a set-screw 5, which enables the motor 3, carrying with it the fan (5, to be adjusted to any desired angle. Supported on the said motor 3 is a frame 7, which carries a ring or band 8, having face- Serial No. 678,866. (No model.)

brackets S, to which are attached by means of the thumb-nuts 9 the blades 10, which are provided at their ends with threaded pivotpieces 10 for this purpose. These blades may be set at any angle desired and are, it will be observed, in the direct path of thecurrent of air created by revolution of the fan 6. It will be seen that when the current strikes these blades the tendency will be to drive them away from the said current and in a direction opposite to the angle of reflection. This will tend to revolve the entire fan, including its motor 3, about the central shaft 4. This revolving is accomplished by the construction shown in detail in Fig. VI. The sleeve 2 and the central shaft dare provided with steel bearings 12, between which are placed the balls 11, permitting rapid revolutions of said central shaft 4:. The lower bearings 12 are supported between an internal annular flange 2" on the sleeve 2 and a lower collar 4 on the shaft 4, while the upper bearings are supported between an upper collar Q on the shaft 4 and a cap 2 on the sleeve 2. The current of electricity is carried in through the wire 13 through the binding-post 14 and connects with the copper brush 15, which bears against the copper tube 16. This tube 16, embedded in insulation 17, has at its upper end connection with the wire 18, which leads into the motor 3. The circuit is completed from the motor by the wire 19 being in contact with the second copper tube 20, which in its turn contacts with a brush 21 in connection with the wire 22, leading to the source of electricity, the said wire 22 being connected with the brush 21 by the binding-post 23.

24 and 25 are switch-handles pivoted by shafts 26 and 27, by means of which the brushes and 21, rigid therewith, are pressed against or moved from the copper tubes 16 and 20.

The device is operated as follows: Assuming the fan to which the invention is applied is of the character shown in Fig. I, adapted to be placed upon a table or desk, the current of electricity is conducted into the motor thereof by means of the switch-handles 24 and being placed so as to throw the brushes 15 and 21 against the tubes 16 and 20. This, it will be seen, conducts a current through the motor 3, which immediately revolves the fan 6. The current of air thus created strikes against the blades 10, which revolves this portion of the device, with its motor 3, around the shaft 4. This is permitted by the ballhearing's described, and yet the con tact is kept perfect through the medium of the brushes ]5 and 21 bearing, against the copper tubes 16 and 20. When it is desired to stop the fan, either one of the switch-handles 2a or may be reversed, which will carry its brush away from the copper tube against which it bears. More perfect adjustment of the pressure of either of the brushes is accomplished by the construction shown in Fig. IV, which shows the brushes l5 and 21 and the switch-handles 2i and 25 secured to the sleeve 2 by set-screws 28. These ride through slots in the plate 29, which carries the said switch-handles, enabling. one to accomplish a very delicate adjustnient of the contact of the said brushes.

The direction of the current from the fan 6 can be regulated at any angle desired by means of the set-screw 5 allowing the same to he rocked upon the central shaft 4:.

The device is attached to ceiling-fans by the construction shown in Fig. V, in which represents the shaftsuspended from the ceiling, on which the device is hung. The

cylinder 2 is shown inverted from the position illustrated in Fig. VI. In this the two fans are placed upon a cross piece 31 by means of the supporting-post 32, being secured therein by set-screws 33. These fans may likewise be set at any angle desired.

I claim as my invention 1. The combination of a support, a sleeve, a central shaft, rotatable in the sleeve, a motor having a rotary fan, a frame for the fan, having a ring or band provided with facebrackets, and the blades extending across the face of the fan and secured to the face-brackets; substantially as described.

2. The combination of a support,a sleeve, a central shaft, rotatable in the sleeve, a motor having a rotary fan, a frame for the fan having a ring or band provided with facebrackets, the blades, provided with threaded pivot pieces at their ends, and extending across the face of the fan, and thumb-nuts whereby the blades are adjustably secured by means of their pivot-pieces to the facebrackets; substantially as described.

S. L. SHELL JNBERGER.

In presence of- E. S. KNIGHT, STANLEY STONER. 

